In this video from the SC17 HPC Connects series, Dimitris Menemenlis from NASA JPL/Caltech describes how supercomputing enables scientists to accurately map global ocean currents. The ocean is vast and there are still a lot of unknowns. We still can’t represent all the conditions and are pushing the boundaries of current supercomputer power,” said Menemenlis. “This is an exciting time to be an oceanographer who can use satellite observations and numerical simulations to push our understanding of ocean circulation forward.”